I've never smoked cigarettes but I've gotten into the habit of having a cigar and I can understand the small rush you get after having one. I think it comes down to "out of sight out of mind" where you have to make it difficult for yourself and not a crutch. But allow yourself the indulgence because it's better than other things I could name!
I know classical music calms me down a lot and I'll have a fat free dose of ice cream if I'm really up the creek.
Much love!